Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a mobile device display screen or portion thereof with a graphical user interface embodying the present design.

The broken line showing the mobile device is provided for the purposes of illustrating environmental structure and forms no part of the claimed design. Furthermore, the broken line showing the display screen and elements of the graphical user interface represents the portions of the article that forms no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 